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Bosch Therm 940 ESO NG (Natural Gas) - Outdoor

Product Overview

Bosch Therm 940ESO-NG (Natural Gas) whole-house outdoor tankless water heater

199,000 BTUs and up to 140 degrees F, Electronic Ignition, Energy Star

In stock


Eligible for Free Ground Shipping on orders over $199

Our Price:

Regular Price: $2,249.00

Special Price: $1,849.00


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Bosch Therm 940 ESO NG (Natural Gas) Outdoor Whole-House Tankless Water Heater

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  • Bosch Therm 940 ESO NG (Natural Gas) Outdoor Whole-House Tankless Water Heater
  • Bosch Therm Digital Control Panel Close-up
Save 10% (up to $300) with the 2011 Federal Tax Credit for qualified Gas Tankless Water Heaters.
  • Bosch Therm 940ESO NG (Natural Gas) Outdoor Tankless Water Heater

    At 199,000 maximum BTUs the Bosch 940 ESO NG (Natural Gas) is our highest capacity non-condensing tankless water heater. The Bosch Therm 940ESO-NG was designed to meet the demands of busy households and offers the premium features you expect from Bosch. This model can be installed almost anywhere thanks to its sealed combustion and dual-fan technology.

    The Bosch Therm 940 ESO NG comes complete with the Bosch BTOK outdoor vent cap and built-in freeze protection allowing this heater to be installed outdoors in approved locations that experience occassional overnight freezing.

    This heater is Energy Star rated.

    This heater comes with built-in freeze protection and a water filter that is externally accessible, but does not come with a PRV.

    The Bosch Therm 940ESO NG is the direct replacement for the Bosch GWH 715 ES NG/BTOK and the Bosch AquaStar 2700ES-NG/AQOK.

    Please note that the Bosch Therm 940ESO NG is equivalent to the Bosch ProTL 199N/BTOK.
  • Brand Bosch Therm
    Model Bosch Therm 940ESO-NG
    Manufacturer's Part Number (MPN) 7738000001
    Replaces Old MPNs 7703311071, 7-703-311-071
    Alternate MPNs 7-738-000-001
    UPC 52575109428
    Gas Type Natural Gas
    Product Type Whole House
    Indoor/Outdoor Installation Outdoor
    Heater Style Tankless
    Application Commercial,Residential
    Product Dimensions (H" x W" x D") 30.5 x 17.875 x 11.25
    Product Weight (Lbs) 72
    Shipping Weight (Lbs) 89.0000
    Capacity @ 35 Deg F Temp Rise (GPM) 9.4
    Capacity @ 45 Deg F Temp Rise (GPM) 7.2
    Capacity @ 55 Deg F Temp Rise (GPM) 6
    BTU Rating 199000
    Maximum Input (BTUs) 199000
    Minimum Input (BTUs) 19900
    Maximum Output (BTUs) 160500
    Minimum Output (BTUs) 18300
    Altitude Test (Ft) 8000
    Temperature Range (Deg F) 100 - 140
    Venting Options N/A
    Venting Diameter (Inches) N/A
    Vent Maximum Run (Ft) N/A
    Gas Connection (Inches) 3/4 NPT
    Water Connections (Inches) 3/4 NPT
    Activation Flow Rate (GPM) 0.5
    Water Pressure Rating (PSI) 30 - 150
    Energy Factor 0.83
    Thermal Efficiency (%) 82
    Electrical Requirements (AMPS / V) <=2.5 / 120
    Remote Control Optional Wireless TSTAT2 Available
    Warranty 15-year limited warranty on the heat exchanger (3-year if used in recirculating applications); 5-year limited warranty on all other parts
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  • Warranty

    Bosch gas tankless water heaters, electric tankless water heaters, electric mini-tank water heaters and accessories are warranted directly by the Manufacturer (BOSCH) through Bosch Thermotechnology Corp.

    Please visit the web site Warranty Page for the full details of the Bosch product warranty.

    Be sure to fill out your Warranty Card and send it to Bosch immediately after your installation to ensure you are registered for the full product warranty.
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